Sandy, it was in response, or at least in support of planting them (any tomato) on their sides in a shallow trench. Not necessarily having to do with grafted plants, but it is a way to get the plant to develop a very large root system. If you look carefully, you can see where the green starts, that is where the plant grew up out of the ground. I hope this helps. Look back in the thread for my original comment which was made July 28, 2013. I had mentioned the planting method, said I had pictures, and just today remembered to find and post them. Sorry for the confusion.
Rick, if Territorial is selling the seed for SuperNatural (R), we could graft anything we wanted onto it. Maybe they realize that not many people are going to buy their $8 plants.